For the LORD will not cast off his people, neither will he forsake his inheritance.
For - introducing the ground of the blessedness of those who, being taught by the Lord, have inward rest even in adversity.
The Lord will not cast off his people - forever, though He forsake them for a time (Psalms 94:5; Judges 6:13; Isaiah 2:6) in righteous chastisement for their forsaking Him (Deuteronomy 32:15).